Mexico Tariffs 2026: USMCA Import Duty Guide
Mexico is the largest source of US imports, accounting for over 15% of total trade. Under the United States-Mexico-Canada Agreement (USMCA), most Mexican products enter at duty-free or reduced rates—but not all. This guide explains USMCA preferential rates, rules of origin requirements, and when MFN rates apply.
Understanding USMCA is critical for maximizing savings on Mexican imports.
USMCA Preferential vs. MFN Rates
Mexican products receive one of three tariff treatments:
| Tariff Treatment | Rate | Requirements | Example Products |
|---|---|---|---|
| USMCA Duty-Free | 0% | Meets rules of origin | Auto parts, oil, minerals, agricultural goods |
| USMCA Preferential | 1-5% (reduced) | Meets rules of origin | Some textiles, chemicals, manufactured goods |
| MFN Rate (standard) | 2-20%+ | Doesn't meet USMCA rules or not covered | Products failing origin test, specific categories |
Automotive Tariffs & Rules of Origin
The automotive sector is the largest beneficiary of USMCA. However, strict rules of origin apply:
USMCA Auto Parts & Components (Duty-Free)
- Engines and engine parts — 0% with USMCA qualification
- Transmission systems — 0% when rules of origin met
- Brakes, suspension, electrical components — typically 0-2.5% USMCA
- Integrated circuits for vehicles — must be produced in North America to qualify
Rules of Origin Requirements
To qualify for USMCA rates on autos:
- Regional value content: 75% of the vehicle or part must originate in North America (US, Mexico, Canada)
- Steel/aluminum: Must be melted and poured in North America
- Semiconductors: Chips in automotive applications must be designed and produced in North America (new requirement 2026)
- Labor wage requirement: 40% of direct labor costs in high-value production must be from workers earning at least $16/hour (as of 2026)
- Documentation: Certificate of Origin must accompany the shipment
Failure to meet rules of origin: If a product doesn't qualify, it faces standard MFN rates (typically 5-25% for auto parts).
Agricultural Tariffs
Agriculture is heavily protected under USMCA. Rates vary significantly by product:
| Product Category | USMCA Rate | MFN Rate | Notes |
|---|---|---|---|
| Fresh Avocados | 0% | 0% | Seasonal restrictions apply (Nov-Oct) |
| Fresh Tomatoes | 0% | 15-35% | Price floors and minimum dates apply |
| Corn & Grain | 0% | 0-5% | Some restrictions on processed corn |
| Beef & Pork | 0% | 2-26% | Tariff-rate quotas may apply |
| Sugar | Safeguard applies | 14%+ | Safeguard clause triggers at volume threshold |
| Dairy Products | 0-5% | 8-35% | TRQ (tariff-rate quota) restrictions |
Agricultural Restrictions
Key limitations on duty-free rates:
- Seasonal windows: Some fresh produce only qualify duty-free during specific months (e.g., avocados Oct-Nov)
- Price minimums: Fresh tomatoes must meet minimum price thresholds to enter duty-free
- Tariff-rate quotas (TRQ): Sugar and dairy have volume limits; excess faces high tariffs
- Safeguards: If imports exceed thresholds, automatic tariffs can be imposed
Oil & Energy Products
Mexico's oil and liquefied natural gas (LNG) exports receive preferential USMCA treatment:
- Crude oil: 0% (duty-free)
- Refined petroleum products: 0-1.5% USMCA
- Liquefied natural gas: 0% or nominal duty
- Coal and minerals: 0% (most categories)
Other Key Categories
Textiles & Apparel
USMCA offers preferential rates but with strict yarn/fiber rules of origin:
- Yarn made in North America: Typically enters at 0-3%
- Fabric made in North America from that yarn: 0-3%
- Apparel made in Mexico from that fabric: 0% (if all steps in North America)
- Apparel using non-North American inputs: MFN rates (typically 12-18%)
Chemicals & Plastics
- Basic chemicals made in Mexico: Often 0% USMCA
- Plastics resins and materials: 0-3.5% USMCA
- Finished plastic products: Rates vary; check HTS code
Electronics
- Semiconductors & chips: Strict rules of origin required; many face MFN rates
- Computer components: 0-3.5% if North American content meets thresholds
- Consumer electronics: 0-5% depending on content
2026 Changes & Updates
Labor Value Content Requirement
Effective January 1, 2026, USMCA autos require that 40% of direct labor costs come from workers earning at least $16/hour. This increased from the prior $15.50 threshold, making qualification slightly more stringent.
Semiconductor Rules of Origin
Beginning 2026, semiconductors used in automotive applications must be designed and produced in North America to qualify for duty-free treatment. Many Chinese-origin chips now fail this test.
Agriculture & Climate Measures
USMCA has implemented temporary duty suspensions for agricultural inputs affected by climate crises in specific producing regions. Check current status for your product.
Look Up Mexico Tariff Rates
Search our 28,000+ HTS codes to verify USMCA rates and MFN rates for your specific Mexican products.
Search HTS Codes NowFAQ: Mexico Tariffs & USMCA 2026
Your Mexican exporter or customs broker must complete a USMCA Certificate of Origin Form (CUSMA/T-3 in Mexico). You then provide this to US Customs when the shipment arrives. Without proper documentation, standard MFN rates apply.
Standard MFN rates apply. These are typically 5-25% higher than USMCA rates. For automotive parts, the difference can be significant (e.g., 0% USMCA vs 15% MFN).
The part does not qualify for USMCA duty-free treatment. It enters at standard MFN rates. Many suppliers have restructured sourcing to meet the 75% threshold.
Only if they meet the price floor (changes seasonally) and are imported during allowed windows. Off-season tomatoes or those below the minimum price face tariffs of 15-35%.
USMCA includes "safeguard" clauses that auto-trigger tariffs if agricultural imports exceed certain volume thresholds. This is designed to protect domestic US producers. Sugar and dairy have explicit TRQ (quota) limits.
Possibly. USMCA includes automatic sunset provisions and review periods. The agreement is scheduled for review in 2026. Monitor Tariff Check's Trade Updates for any renegotiation announcements.